I recently picked up my first Lotus Evora GT and I think it's a well balanced machine. I see a handful of people lightly modifying(cai,headers,exhaust)there cars. What I don't see is anymore mentioning tuning besides one or two people who mention the German company. Every car I've ever own(Subaru STI, GT350 824whp, 2020 GT500 1020whp) had to be tuned after adding basic bolt ons to the car or major things like bigger turbos, smaller pulleys etc. I'm looking to add a few minor bolt ons, I looked at a few different headers and the websites say tune not needed which sounds weird to me! Is anyone actually running PB headers, BOE headers, or Aerie headers without a tune? I would love to hear from anyone running header/exhaust combo.